The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jul. 04, 2017
Filed:
Nov. 10, 2011
Applicants:
Tomoyoshi Ueki, Toyota, JP;
Harunari Shimamura, Nagoya, JP;
Yusuke Fukumoto, Moriguchi, JP;
Inventors:
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01M 2/16 (2006.01); H01M 2/18 (2006.01); H01M 2/34 (2006.01); H01M 10/04 (2006.01); H01M 10/0587 (2010.01);
U.S. Cl.
CPC ...
H01M 2/1653 (2013.01); H01M 2/18 (2013.01); H01M 2/34 (2013.01); H01M 10/0431 (2013.01); H01M 10/0587 (2013.01);
Abstract
A battery includes a flat wound electrode body formed by winding a positive electrode sheet and a negative electrode sheet with a separator interposed therebetween into a flat shape. The separator has an outer edge adjacent portion adjacent to either an outer edge of a positive electrode active material layer or an outer edge of a negative electrode active material layer. In a curve positioned portion disposed at least in a curved portion of the flat wound electrode body, the outer edge adjacent portion has a suppression portion for suppressing the occurrence or development of a crack.